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REST Track

Master HTTP semantics, authentication, error handling, and webhook patterns for carrier REST API integrations.

1
What Carrier Integrations Get Wrong

Why carrier API integrations fail in production and what patterns separate reliable systems from brittle ones.

2
HTTP Semantics: Safe, Idempotent & Retries

Understand which HTTP methods are safe and idempotent, and why this matters for retry logic in carrier integrations.

3
Auth, Headers & Correlation IDs

Master carrier API authentication patterns, essential headers, and correlation ID strategies for debugging.

4
Error Mapping & Problem Details

Learn to map carrier error responses to your domain, and use RFC 9457 Problem Details for consistent error handling.

5
Pagination & Webhooks Basics

Handle paginated carrier responses and implement webhook receivers for tracking updates.

Continue to SOAP Track
Carrier API-TrainerAPI Trainer

Interactive carrier-integration learning for REST and SOAP interview prep and troubleshooting.

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